Recently, I was lucky enough to speak with Joe Cross. Joe is the founder and CEO of Reboot. His personal story of transformation was chronicled in the documentary Fat, Sick & Nearly Dead, which has been seen by more than 20 million people worldwide. Joe shared with me some of his top tips on keeping healthy this summer.

If you lose weight while on a juice cleanse or detox, it's because you're losing water and not getting enough calories -- that's about it. Few people will realistically be able to maintain this kind of diet because it means starving yourself. We shouldn't be paying money to starve ourselves.